TW200540804A - Device and method for reducing power consumption of disk drive - Google Patents

Abstract

The present invention relates to a device and method for reducing power consumption of disk drive, in which a loader signal is sampled for being compared with a predetermined reference signal to determine whether to increase or decrease the output signal index, so as to obtain the required phase of the generated magnet exciting control signal by changing the direction of the output signal index to be positive or negative, thereby controlling the rotating direction and stop time of a motor. The generated magnet exciting control signal is not required to be outputted continuously, and only a predetermined number of magnet exciting control signals are outputted when the index is increased or decreased, so as to reduce the output control time and greatly decrease the power consumption of the disk drive.

Description

200540804 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention is a kind of Yin7. By means of a device and method for reducing the power consumption of a disc drive: the disc drive achieves the purpose of saving power. Fo1 lowing power consumption rate, [prior art] In the disk player system used by HΓ 7, the tracking (f〇n〇wing) is to make Γ disc 1 :: The speed of the action must be fast enough to increase the speed of I · PI, but the range of this action is quite large, so the purpose is more effective. For the tracking algorithm to make the tracking steps, please refer to the first person. Buqi ® Ganshan ^ This picture is not the non-compliant control commonly used today. The two-two sine wave is a vehicle control signal 202. The current method is that under 204 between 20 制 ΛΓ / Λγ, a specific sampling voltage will be sampled, and the signal m will continue to output two == out. The excitation control down-sampling voltage value m replaces two rotation directions or is stationary. The inventor hereby proposes that instead of the existing, tracking control method, the control method not only achieves the method substantially, but also has a performance that surpasses the conventional control methods. [Inventive Content] ★ ° The present invention It is a method of reducing the power consumption of the disc player by counting the vehicle control signals generated by the waveform generator. After the obtained signal and two preset reference voltage levels are processed, the obtained signal is input to the waveform generator, and the output signal is compared with the period of small power after comparison. Page 5 200540804 V. Description of the invention ( 2) The sexual excitation signal is used to accuse 丨 丨 Λ of turning the direction forwarder 'and enable the vehicle motor to move to the correct light track. The turn even stopped because the optical head was at: a comparison device. The inventor used a signal processor to reduce the required power generator to achieve the sampling control signal and [implementation method] The invention This is a kind of device that you can use. According to the second picture, this is the device and method of ::: machine: power rate consumption, please refer to controller 100, one access V system; for example. The device includes 1 ^^ than ^! 150, a waveform ΓΪ 2〇, a signal processor " 0,-than the early morning fast / leather generator U0,-the power to drive the 17λ vehicle motor 180. Among them, the signal controller 丨 〇 and a | ⑽ and a central error signal (later, input = error signal 丨 number 2), the tracking control signal is the access control shield track control?丨 It can be used to control the optical head _whether it can read or write input ^ 丨 Signal control: the device T will output a vehicle control signal 108 to the signal location 40, and the signal processor 140 will send the signal The vehicle control signal 1 0 8 output by the controller 100 is sampled by digital signal processing (dgp), and then the sampling vehicle control signal 1 44 is input to the comparator 1 5 0, and a positive reference signal 152 and a The negative reference signal 154 is compared, and the comparator 50 outputs an output signal index according to the comparison result. If the sampling vehicle control signal 144 is greater than the positive reference signal 152, the output signal chain index of the comparator 15 is incremented by one; if the sampling vehicle control signal 144 is less than the negative reference signal 200540804 V. Description of the invention (3 ) No. 1 5 4 'The output signal index of the comparator 1 50 is decremented by one. And the waveform generator 160 will follow the comparator! 5 〇 Output signal index Outputs a preset number of periodic two-phase excitation control signals 1 β2 (FM0 and FM02) at equal time intervals, and the phase of the two-phase excitation control signal ι62 increases or decreases with the output signal index Make changes to control the power driver 170. The power driver 170 will generate two sets of complementary motor control signals 1 7 4 'according to the two-phase excitation control signal 16 2 to control the forward or reverse rotation or stop of the vehicle motor, thereby controlling the optical head. 1 3 0. Please refer to the second A diagram 'This is the internal structure diagram of the signal controller in the present invention. These include a tracking error controller 102 and a vehicle controller 104, and two amplifiers 114 and 118. When the tracking error controller 10 receives the input tracking error signal (TE), it will generate the corresponding tracking control signal (TR0) output, and a part of the tracking control signal will be output to the access controller. 1 2 0, a part will be input to an amplifier J 1 4. The vehicle controller 1 04 provides a selection function, which can select output from one of the tracking control signal (TR0) and the secondary error signal (CS0). Either control signal or central error signal. When the vehicle controller 104 selects the tracking control signal (tr0), the amplifier 114 will reduce the tracking control signal (TR0) by a certain multiple to avoid the tracking control signal (TR0) from passing through With the controller 104, the signal overflow situation (over f 1 ow) will occur in month b. And if the tracking control signal (TR0) is reduced by a certain multiple by the amplifier pH before being input to the vehicle controller 104, the output signal needs to pass through The amplifier 1 1 8 magnifies and restores the multiple. and

Page 7 200540804 V. Description of the invention (4), and with reference to the second diagram B, the vehicle controller is a first-level low-pass filter state 1 0 4 1 and a second-level low-pass filter. The filter j 〇 3 is connected in series, and the f-level low-pass filter 1041 is a low-pass crossing wave device with a high sampling frequency, and 1 ^ a ^ low-pass filter 1 043 is a low-pass low-pass filter. filter. Yanyue refers to the fourth figure, which is the two-phase two-magnetism control signal generated by the waveform generator 160 described above. The vertical axis in the figure is the voltage value and the horizontal axis is the time axis. In the figure, wave 30 1 is the vehicle control signal described above. The periodic Lv fl 遽 3 0 3 in the figure generates 5 | 1 β ^ mountain + output flood number for the waveform, and the periodic signal is the one. This is different from the conventional sine wave signal output power, which can be reduced by the piano sigh signal 3 0 3. This periodic signalling is illustrated in Figure 6A. When the heart is delayed, when the vehicle control signal 1 08 is input to the signal processor, it will be generated according to the set sampling frequency:;: After that, the vehicle control signal 108 is sampled, and the sampling frequency can be the above ^ The sampling frequency of the pass filter 1 043 is separated by 3 0 5 times. When the sampling time 30 2 is close to the low level, the vehicle control signal 1 08 is sampled, and then the sampling is fast. 50 and compare it in comparator 150 with positive table ^ / alum and negative reference signal 1 54. , ≫ signals 1 52 to

Please refer to the fifth figure, which is one of the present invention. I The vertical axis is the increment value of the output signal index of the comparator 1 50, & column. The signal voltage value in the picture. If the above-mentioned sampling vehicle control signal 丨 two = is the reference signal 1 52, the output signal index is increased by one, if so; positive reference sampling vehicle control signal

200540804 V. Description of the invention (5) 7 Tiger 1 4 4 is less than the negative reference period 1 1 ^ Unveil ^ item ^ β $ The output signal index is decremented by one, if it should be taken ... Item 1 ^ 1 4 4 is between positive references Between signal 1 5 2 and negative reference signal 1 5 4 & the output-signal index remains unchanged. In Figure 2 and Figure 6A, this is an embodiment of the present invention. When the above output signal 5 tiger index increases by 1, car-^ ^ ^ 1 r 〇 indicates that the sampling vehicle control signal 1 44 is greater than 疋: 1, at this time the wheel output signal index increases, and the waveform generator 1 60 will 1 ^ ^ Click to start according to the waveform of the vehicle control signal 1.08, and continuously sample the carrier ～ 20% ~ 1, and input the pre-recognized number of pulse signals 3 〇3 at intervals of 307 according to the increase of the output signal index. And this pulse signal 30 9 is the two-phase excitation control signal 162, Αά output signal index :: Adding will make the vehicle motor i 8 〇 rotate forward. On the other hand, if the output signal index is; if there is less than one, it means that the sampling vehicle control signal 1 44 is smaller than the negative reference signal 丨 54, then the motor is controlled to reverse according to the above method. The frequency of the two-phase excitation control signal 16 2 may be the above-mentioned first-stage low-pass filtering, the sampling frequency of 1041. Because the first-stage low-pass filter 104 1 is high-frequency sampling and the second-stage low-pass filter 1043 is low-frequency sampling, the sampling time interval 3 of the vehicle control signal 1 08 will be It is larger than the output time interval of two-phase excitation control signal 3 0 7. After that, the waveform generator 16 no longer generates a signal, and the power driver 170 will continue to rotate according to the previous two-phase excitation control signal 16 2. The longer the output time of the two-phase excitation control signal 16 2, the more power it consumes. However, in this method, it is only necessary to sample the vehicle control signal 3 0 丄 to form a periodic signal 3 0 3, and the periodic signal 3 0 3 is controlled by a plurality of vehicle control signals 3 0 1 Sampling pulse wave signal 3 009

200540804 V. Composition of invention description (6), and the number of samples can be set, which is used as phase excitation control signal 16 2. Comparing only the sixth Ah 2 Λ h 6 ', ^ ^ 162 望 闰 A A A two-phase excitation control signal ## // 山 一 士 two-phase excitation control signal 2 0 6 can be compared> Yuechu It can be seen that the two-phase excitation control signal required by the present invention & Number: ΪΓΓΓ] Signal 301 Sampling a preset number of pulse signals 309 Two samples = 丨 4 ^ Sample signal value as two-phase excitation = 5fl number 2 0 6. Therefore, compared with the conventionally known signals, the output signal can control the rotation of the vehicle motor 1 80 without sustaining the sine wave of the entire vehicle control signal 301, which can greatly reduce the power consumption. It is only necessary to output the two-phase excitation control signal 162 for this short period of time. Second, to the purpose of controlling the vehicle motor 180. At the same time, not only can it achieve the purpose of greatly saving the required power, but also the vehicle motor] 80 can still maintain efficient operation 0, and the waveform generator 160 in the sixth A figure uses a set of gain signals as Adjust the adjustment value of the positive edge level amplification of the pulse signal 3 0 9 and the negative edge of the pulse signal 3 9 does not use the gain signal for level adjustment control, and 疋 directly pulls the level to the 0 position. However, the two-phase excitation control signal [62] is formed by the complex array pulse signal 3009. Such a pulse signal 3009 will easily cause the vehicle motor 18o to shake due to the large-scale change, which will cause the image optical head 16o. Operational stability. Therefore, the present invention also provides another embodiment. As shown in FIG. 6B, the pulse signal 309 in FIG. 6A becomes another pulse signal mirror 311 in another embodiment. The waveform in FIG. 6b is The generator ι60 uses two sets of gain signals.

Page 10 200540804 V. Description of the invention (7) is used to adjust the positive edge level and negative edge level amplification of the pulse signal 3 丨 丨 respectively, so the negative edge of the pulse signal 3 丨 丨 is not directly pulled to 〇 Instead, it is pulled between the positive edge level and the 0 level. This can solve the problem that the pulse signal 3 0 9 in the sixth A causes the vehicle motor to shake. Therefore, when the tool motor 180 moves the optical head 130 to the correct track ^ 1 ί The center signal (CS〇) is zero, the vehicle control signal 1 08 '' is therefore 1 5 0 The output signal index is unchanged, so the waveform output

The generator 1 6 0 will not produce Λzhi, red a Λ Bu A y M 170 does not generate a motor suppression = = = ^ signal 162, so the power driver and optical carrier motor 180 are stopped, the method flow is as follows 2 An optical head for reducing power consumption of a disc player according to the present invention, its optical head, and the position of the optical head shaved 6 0 0. It is known that the optical head is an optical head. Thus, the center error signal 6 0 2 6 is obtained in this way. 〇4 and output it, the gap should go up and down; the vehicle control signal is formed to determine whether the loss m is less than the negative reference: whether m is greater than the positive reference signal and the negative reference signal (™ 'or is between positive and negative The control of the sampling vehicle is right when the negative reference signal is positive, and then it enters the positive reference, and the negative reference signal enters step 620. If it is between the positive reference signals, it proceeds to step 6 30. After passing the vehicle controller After 1 mile, the signal is made by sampling and processing the central error signal. After 006, the stomach is __, and the vehicle control signal is applied to the digital sampling vehicle control signal. The sampling vehicle control signal ; And break the sampling vehicle "negative reference signal, please compare P th), or Charles will be less than ± 1 Tiger Cloth and no greater than the positive reference signal ΙΕΜ page 11

200540804 V. Description of the invention (8) When the sampling vehicle control signal is greater than the positive reference signal, the 61 output signal index is increased by one. And German, ancient, and ancient quasi-suppression, β Λ Α β will be ^, and then the waveform will be generated 16 0 will be sent due to the output signal index & plus a preset number of equal-time two-phase excitation magnetron: fi! Work two drives. After the output of the two-phase excitation control signal is completed ^ 612, the waveform generator 16 will not continue to generate signals to save power: Ϊ The arrival of an excitation control signal. Although this waveform produces signals continuously, the power generator still uses the latest ^ f, J lfl f # u 5 # ^ ^ to control the forward rotation of the vehicle motor 6 1 4. When the sampling vehicle control signal is smaller than the negative reference signal 62, the output signal index is reduced by one. And Germany, Bokkai>, and then the waveform generated state 1 60 will send a preset number of two-phase excitation power equal to the time interval ^ power driver, and the two-phase excitation control The two-phase excitation control signals of the signal disc have opposite phases. After the output of the two-phase two-phase excitation control signal is completed, the waveform M I \ Sui, * 4 does not continue to generate a signal, thereby shortening the output control time to ^ ^ ^ 'hair, and wait for the next excitation control The signal is coming. However, "; the shape generator i 6 0 does not continue to generate a signal, the power generator is still a motor, and the δK soul is controlled to control the vehicle motor to reverse rotation 624. > μ 1 this, the sample vehicle control signal is between the positive reference The signal and the negative reference signal, the output signal cable of the car is not changed 6 3 0, so the waveform generation = 160 will reset the output signal to zero, and the power generator will stop turning the motor signal to the horse. Alas, the carrier motor stops rotating. And this step 200540804 V. Invention description (9) will be repeated 6 5 0 to control the optical head to reach the correct reading and writing position. According to the above, only A specific embodiment of the present invention is a device of the present invention, and the process is not limited to this. Therefore, any person skilled in the art in the field of the present invention, the changes or modifications implemented are covered by the scope of the patent of this case. .

Page 13 200540804 A simple illustration of the device; Figure A is a diagram of a preferred structure of the present invention; Figure B is a diagram of the structure of the present invention; Figure 1 is a track used in a conventional optical disc drive The second figure of the control gas f is the signal controller inside the signal controller of the preferred embodiment of the present invention to reduce the consumption of the second rate of the disc. The fourth figure is the first embodiment of the invention. The waveform diagram of the two-phase excitation control signal generated by the waveform; the fifth diagram generated by YI is the waveform diagram of the index ψ% of the comparator wheel of the first-year fragrance of the invention ^ ^ y ^;旎 The sixth diagram A is a waveform diagram of a two-phase excitation control signal provided by the present invention. A sixth diagram B of the surplus signal is the present invention. ^ Zhiyueyi car parent The waveform diagram of the two-phase excitation control signal provided by the preferred embodiment is the seventh diagram of the method of the present invention. An example of reducing the power of the disc player ′ and the consumption of the car driver ’s embodiment [Illustration] 2 0 4 Sampling time 2 0 6 Excitation control signal 2 0 2 Vehicle control signal 2 0 5 Sampling voltage [Invention]

Page 14

200540804 Brief description of the diagram 1 0 0 signal controller 1 0 4 vehicle controller 1 0 43 second low-pass filter 1 1 4 amplifier 1 2 0 access controller 1 4 0 signal processor 1 5 0 comparator 1 5 4 Negative reference signal 1 6 2 Two-phase excitation control signal 1 7 4 Two sets of complementary motor control 3 01 Sine wave 3 0 3 Periodic signal 3 0 7 Equal time 3 1 1 Pulse signal 1 0 2 Tracking error controller 1041 First low-pass filter I 0 8 Vehicle control signal II 8 Amplifier 13 0 Optical head 1 4 4 Sampling vehicle control signal 1 5 2 Positive reference signal 1 6 0 Waveform generator 1 7 0 Power driver signal 1 8 0 Vehicle motor 3 0 2 Sampling time 3 0 5 Time interval 3 0 9 Pulse signal

Page 15

Claims (1)

200540804 VI. Scope of patent application 1. A device and method for reducing the number of signal controllers, including: a device and method for controlling branch consumption, including: a control signal, receiving a central error signal, and generating a random number processor, 2. Output signal; 1. A remote comparator control signal is sampled and processed to generate a one-to-one comparator, a technical two and a positive reference signal, and "," a signal from a rational wheel, and its signal; and, > test signal Make a comparison, and generate an output, a waveform generator cycle, a sexual signal, the periodic signal f, and a one-for-one signal, and generate one, which is controlled by the cutting tool. ^, = Control signal by the vehicle. Sampling, the T-like part can be set: Luhu device in the sampling part of the tiger: two ^^ = the device to reduce the power consumption of the disc player, and a vehicle controller, the two tracks are wrongly included, one cycle Track error control cover: Long, and generates a tracking control gas number controller system to receive-tracking error, the center error message and the tracking system = the vehicle controller is receiving the vehicle control signal. The system said and selected one of them-the output is 3, as in the patent application scope of the installation method and method of the vehicle control 2: reduce the power consumption of the disc drive the tracking control signal to reduce a complex first pass-amplifier, will = by When the implement controller handles; gas; ^ free from the tracking control signal situation. Xun said 20050804 for overflow (〇verflow) VI. Application scope of patents ------- 'can be installed 4, can be installed as described in item 3 of the scope of patent applications and methods, where the vehicle control After the vehicle is reduced by a multiple of multiples, the control of the vehicle = the output signal is input to another amplifier through the amplifier to amplify it; = alum number, 5, such as patent Decrease '===' in item 2 of the range. And a method, wherein the vehicle controller is composed of a second low-pass filter of "first" = low consumption. -k filter and 6. The falling device and method as described in the patent application, in which the first-stage low-pass filter is a consumption = filter, and the second-stage low-pass chirp is -C. Pass filter. Other devices with low sampling frequency are the ones described in item 1 of the patent / please range to reduce the power consumption of the disc player. Li signal acquisition: The signal processor is the device and method for controlling the signal of the implement. Reduce the power consumption of the disc player as described in item 1 of the special V: f range. / 、 The output signal of the comparator is an output signal cable. The device ΓΛ patent is applied for reducing the power consumption of the disc player as described in item 8 of the range rule. The control signal of Dai Nong _ System 1 is to increase the output signal by two: ::: It is greater than the power consumption of the disc player as described in item 8 of the patent application scope. Between the signals: the tool control signal is between the positive reference and minus -10 if the round signal index remains the same 旎 and the negative reference 200540804 VI. Apparatus and method for patent application The signal index outputs a magnetic control signal. 1 Such as the patented device and method output signal index 12 ^ Such as the patented device and method 5 The generator receives the pulse signal that the comparator will continue to control the vehicle at the sampling time 13 ~ Such as the patented device and method , Control signal. ~ Π I soil network H double F set bathroom 2 ίThe application scope reduces the power consumption of the disc player as described in item 10 ^ 1 ^ u The phases of the two-phase excitation control signals follow the " «^» P 1C ° Set the disk to reduce the power consumption of the disc player, as described in item 10 of the application range, > 5 & Installed by Guye 1 3, such as a red signal, as the two-phase excitation control signal. The device and the method are as follows: please reduce the power consumption of the disc player as described in the item 10 of the range to adjust the two-phase magnetism ;: the waveform generator is a device and method for using the group gain signal: the 10th range of the method The two items described below are used to reduce the power consumption of the disc player. I: The waveform generator is a device that uses two sets of gain signals and 15 two-phase excitation control signals. After the magnetic control signal for reducing the power consumption of the disc player described in item 10 of the range, the j-power driver receives the two sets of motor control signals of the two-phase excitation input knives. The device and method for reducing the power consumption of the magnetic field control signal, as described in item 15 of the scope of patent application, is to reduce the power consumption of the machine, including the motor of the vehicle. Receive the two groups Page 18 200540804 VI. Scope of patent application I signal, which makes the vehicle motor control an optical head I 7. Move to the correct optical track as patented. I ^ τ Mingqin's device and method of 陂 y described in item 16, where: ： low disk drive power consumption | signal. Hole Bluffs are two sets of 18 complementary devices that reduce the power consumption of the disc player. The input-vehicle control signal-to-signal method includes: sample the vehicle control signal to get a fetch | ; The control signal of the Go vehicle is determined by the turn of the control signal of the sampling vehicle. The sample vehicle control signal and a positive reference signal comparator compare I to the car. The long negative reference signal is II. The output index is determined by The comparison result of this comparator; and 丨 pass i rain out and a preset number of two-phase superimposed magnetic field of equal time interval 1 two η 丨 by ,, lfe you L υα 目 目 / 敦 磁 4 system The signal, the skin shape generator is indexed according to the output signal. For the purpose of reducing the power consumption of the disc player as described in this item ...-as the board: the power reduction of the disc player as described in item 18 of the scope of application ^ jL · _ ', of which these two The phase system of the phase excitation control alum signal changes with the increase and decrease of the signal bow of t | p. L ^ The method and method of reducing power consumption of the disc player as described in item 18 of the scope of patent application, wherein the signal processor samples the vehicle control signal at the time interval generated by the set sampling frequency%. . I You Page 19 The signal for reducing the power consumption of the disc drive is greater than the positive reference message: Reduce the power consumption of the disc drive ^ 忒 Some two-phase excitation control drive production _ Group motor control = Reduce the power consumption signal of the disc drive, give the power and drive = Two 2-phase excitation control signals = These two-phase excitation control signals are used to control the vehicle, and the power consumption of the disc drive is reduced to less than the negative reference 1. ί: Low power consumption of the disc drive is controlled magnetically | Two sets of motor control: ΐ: the disc drive consumes the two first f numbers to the power drive; = the two-phase excitation of the signal 200540804 VI. Scope of patent application 2 2. If the device and method of item 8 in the scope of patent application ’, where the sampling vehicle control, the output signal index is increased by one. 2 3. The device and method as described in item 22 of the scope of patent application, wherein the waveform generator signals to a power driver to make the control power signal, thereby causing a vehicle motor to rotate forward. 24. The device and method according to item 23 of the scope of patent application 'After sending the two-phase activators, the waveform generator stops sending, and the power generator continuously outputs the magnetic control signal according to the latest time The two sets of motors are running forward. 2 5. The device and method according to item 8 of the scope of patent application, where the sampling vehicle control is said, then the output says that the tiger index is decremented by one. 26. The device and method according to item 25 of the scope of patent application, wherein the waveform generator signal is given to a power driver to make the power drive signal, thereby reversing a vehicle motor. 27. The device and method as described in item 26 of the scope of patent application 'After sending the two-phase activators, the waveform generator stops sending, and the power generator follows the most recent time page 20 200540804 6 The patent application scope magnetic control signal 'continuously outputs the two sets of horse motors to reverse. The manufacturing method is used to control the device 28, such as the device and method of item 18 of the scope of patent application, wherein the sampling low disc drive power consumption is reduced as described in the scope of item 28 of the publication f; two = unchanged . Device and method, wherein the waveform generator is to stop the wheel power demagnetizing magnetic control signal to a power driver to make the power drive cry two-phase excitation control signals to a vehicle motor, so the vehicle motor is not Stop exporting the horse 30, as described in item 18 of the scope of the patent application, and the method of reducing the dish, I Φ ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ### 力 力 消 ♦ 号 士 消 #, and the negative reference signal: Then the output 2: No.-Reference 29, the reduction disc as described in item 28 of the patent application scope, unchanged. Device and method, wherein the waveform generator is to stop the wheel f = power consumption magnetic Chiang signal to a job to run I ........ 1 these two-phase bismuth outer points, so the load It has no action against rain ^ 30. The device and method for reducing dish shouts as described in item 18 of the scope of patent application, wherein the waveform generator uses a set of gains to eliminate the two-phase excitation periodic control signals It edge level. No. ^ 3 The device and method for reducing the power of a disc player as described in item 8 of the patent application scope, wherein the waveform generator uses two sets of gain signals to adjust the positiveness of the two-phase excitation periodic control signals separately. Condition and Negative Condition 5